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Stay healthy with DOST-developed guyabano supplements & tea

Green, pulpy, sweet, and healthy. That is guyabano for you.

Guyabano (Anona muricata), or soursop as it is known in English, is a small tropical fruit tree bearing a sweet heart-shaped fruit with a soft-spined green outer skin and soft pulpy white flesh. It has been refreshing people for a long time as a fruit juice, flavoring, puree, tea, or eaten as it is. It is being widely cultivated in Central America, some sub-Saharan parts of Africa, and in Southeast Asia, the Philippines included.

But aside from being rich in carbohydrates, dietary fiber, and Vitamins C, B1, and B2, do you know why it is very good for you? Studies by the Chemicals and Energy Division (CED) of the Department of Science and Technology’s Industrial Technology Development Institute (DOST-ITDI) show that guyabano generally has high flavonoid content. Flavonoids are phytochemicals that have been found to inhibit or even prevent the growth of viruses, carcinogens, and allergens.

These are just the few benefits that the DOST-ITDI aims to harness as it develops and promotes guyabano as a natural dietary health supplement. Traditionally, guyabano has been consumed by diabetics to lower their blood sugar, and tests showed that it even outperforms Metformin, the most commonly used maintenance drug of diabetics, in lowering blood glucose levels.

Hence there is the need for a better and more convenient packaging for guyabano to strengthen its marketability.

ITDI’s CED, while adhering to WHO standards, processed and packaged guyabano fruits and leaves into 250 and 300mg capsules or in two-gram teabags. “Thus, guyabano capsules and tea bags are now more convenient to use. They are standardized and naturally processed, and thus guaranteed safe,” says Annabelle Briones, CED chief science research specialist.

In addition, guyabano has been scientifically and traditionally proven to have great natural benefits. It helps lower fever, spasms, heart rate, and blood pressure. It also helps relieve pain, inflammation, and asthma. Consuming guyabano extract can also safely prevent cancer cells from forming while effectively slowing down tumor growth. It also helps stop the growth of harmful bacteria, viruses, fungi, and parasites, even as it stimulates digestion and stop convulsions.

At the ITDI, CED researchers performed thin-layer chromatographic fingerprinting and phyto-chemical screening on the guyabano extract to determine its chemical makeup. They also tested the fruit for anti-microbial capability against Staphylococcus aureus, E. coli, and other common bacteria strains, as well as for acute toxicity.

They used the Folin-Ciocalteau method to determine the antioxidant content of the leaves and fruits. After the screening, the researchers confirmed that the guyabano extract used was relatively free of pesticide residues, heavy metals, molds, and salmonella.

“We also discovered that the green unripe guyabano fruit contains more flavonoids than the yellowish ripe fruit. The leaves meanwhile are rich in tannins, fats and oils, unsaturated steroids, and triterpenes, and again, more flavonoids,” Briones said. “Therefore, all these properties really make guyabano an ideal health supplement.”

So it seems like it is not just an apple a day that could keep the doctor away, but guyabano too!

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KRAM’s Food Products, a small to medium enterprise that produces peanut butter in Estaka, Dipolog City, is ready to grind more peanuts.


With a P120,000 support from the Department of Science and Technology-Small Enterprise Technology Upgrading Program (DOST-SETUP), the firm is spreading up its creamy, crunchy prospects as it upgrades its peanut butter processing facility.


Through the support, KRAM’s will acquire two peanut grinders, two stainless steel tables, a peanut roaster, and a biomass stove. To improve its production process, KRAM’s also participated in DOST-Region IX’s trainings on good manufacturing practices (GMP), and on basic sanitation and hygiene for the enterprise workforce.


With these interventions, the enterprise expects to chomp up its current production by 30 percent, which will result in production of 1,008 more peanut butter jars a year.


It also targets to increase sales by 30 percent, generate additional employment, improve the quality of products through adherence to GMP, and acquire License to Operate from Department of Health’s Food and Drug Administration (FDA).


KRAM’s Food Products produces peanut butter from roasted peanuts that are grilled and mixed with sugar, salt and butter. The product is consumed mainly as sandwich spread, and as ingredient in making fresh lumpia and kara-kare.


It currently distributes peanut butter products in cities of Dipolog and Dapitan, and in the municipality of Manukan. As soon as the enterprise gets FDA license, it plans to expand its market to major grocery stores in Zamboanga del Norte province.


SETUP, a flagship program of DOST, is a nationwide strategy to encourage and assist micro, small and medium enterprises in the implementation of technological innovations and improvements in their operations in order to boost their productivity and competitiveness.

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Department of Science and Technology (DOST) officials and employees, together with their associates and friends, focused this year’s Christmas celebration on helping others, especially typhoon Pablo victims in Mindanao. In a fundraising and charity activity billed as “Sulong Tulong para sa Mindanao” (S & T for Mindanao), DOST raised a total of around P 110,000 in cash as of press time and collected various donations in kind. “S&T para sa Mindanao” is a continuing activity, thus the amount is expected to increase as donations and pledges continue to pour in.

Aside from raising funds, DOST also sent to Mindanao some experts from Program NOAH to make a study on typhoon Pablo’s effects. DOST officials believe that in addition to financial and other kinds of help, the people need to know the scientific explanation of what actually happened before, during, and after the wake of Pablo.

Sec. Montejo expressed pride and satisfaction over DOST people’s willingness to share and extend help to the survivors of the calamity, as he articulated in his welcome message. Attended by employees and officials from DOST’s various sectoral councils, institutes, advisory bodies, regional offices, and provincial S & T centers, the year-ender became more memorable as the DOST family looked outwards to extend a helping hand.


“For what we have done today, as we do a collective effort to extend our help, and for continuously extending support and sharing our love to our fellow Filipinos in Mindanao, I am truly satisfied,” he said.

“S&T para sa Mindanao” is the highlight activity of Ignite the Mind (ITM) 3.0, DOST’s year-end activity held recently at the DOST Complex in Bicutan, Taguig City. ITM 3.0 is a part of the Changing the Mindset program initiated by the Science and Technology Information Institute, DOST’s information arm.

Said program aims to develop a culture of science among Filipinos by initiating and supporting activities that integrate science and technology to the lives of people.

This year, ITM’s objective of awakening the spirit of oneness within the DOST population went a step further by uniting DOST employees and officers in the act of reaching out to survivors of typhoon Pablo.

With ferocious winds rushing up to 200 kilometers per hours, typhoon Pablo ravaged parts of Mindanao, Central and Eastern Visayas last December 4, leaving a death toll of over a thousand with hundreds more missing in its wake. Among the victims are DOST personnel in the regional offices, namely Region X, XI, CARAGA, IV-B, and VIII.

“I am really moved as we embrace the theme for this yearend gathering “DOST @ 54: Changing Lives” as we begin to genuinely touch the lives of our fellow Filipinos,” Sec. Montejo further said in his message.

Earlier, Fr. Jerry Orbos, SVD officiated a mass and acknowledged DOST’s efforts to help alleviate the situation of the survivors.

In the same yearender activity, DOST agencies also “adopted” orphans from various institutions, in which the orphans were treated to special S&T learning activities like a tour of the Science Heritage Center which houses Filipino S & T inventions, exposure to PAGASA’s mobile planetarium, and film showing of environment-related films. Every agency likewise prepared gifts for every adopted orphan to make the orphans feel special despite their situation.

DOST continues to receive donations in cash or in kind. For pledges and donations, please get in touch with the office of DOST- Philippine Council for Health Research and Development (PCHRD) Executive Director Jaime C. Montoya, chair for S&T para sa Mindanao, 3/F DOST Main Bldg., Gen. Santos Avenue, Bicutan, Taguig City at tel. nos. 837-2942 or 837-7534.

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First they laid the track. Now they ride the coach. In the maiden test run last Friday of the country’s first ever train developed by local experts, Department of Science and Technology (DOST) Secretary Mario G. Montejo and University of the Philippines (UP) President Alfredo Pascual personally board the train to see how the ride goes.

The train, also called the Automated Guideway Transit System or simply AGTS, is designed by DOST engineers in consultation with UP experts. The AGTS’s test run, when completed, would establish the train’s speed and capacity; polish its mechanisms, controls, power, and stress systems; and fine-tune its troubleshooting procedures. The goal is a fully-automated and emission-free transportation capable of carrying up to 60 passengers per trip.

The AGTS is one of DOST’s solutions to the worsening vehicular traffic in Metro Manila and in other metropolitan areas in the country.

More than creating a Filipino train version, according to Secretary Montejo, part of the goal is to “train local engineers to operate their own designed transport system and enhance their competency in the area of transportation technology.”

Plus, developing the train costs just about one fifth of the cost of acquiring a similar foreign train. “We want to locally fabricate the components to make the vehicle cost-effective and sustainable,” Secretary Montejo said.

Meanwhile UP President Alfredo Pascual, when asked about the economic benefits of the AGT said, “One practically stimulates the economy by reducing costs, speeding up the movement of people, or developing an industry.”


He also said that the AGT can help reduce pollution inside the campus. Moreover, the AGTS being an electric-ran transport system, helps mitigate the effects of climate change.

Meanwhile, UP Diliman Chancellor Caesar Saloma said that the AGT test site also serves as a good laboratory site for the university’s engineering students.

Like the Manila Metro Rail Transit (MRT) in EDSA, the DOST-UP AGT is fully-air-conditioned, spacious, and has a fine industrial design. One difference of the AGT over the former, on the other hand, is the lack of cables suspended above and along the track as its DC-electrical system is built along the guideway itself. This gives it a “cleaner look” according to its designers.

The train’s 465-meter guideway or test track stretches from the College of Fine Arts to CP Garcia Avenue, where it makes a 25-meter radius curve to the direction of the University Avenue where the tracks stop. The guideway is made of high-quality concrete and stands at an average height of 6.1 meters.
The testing stage is scheduled to finish by June next year, while results and recommendations that will come out from the test will become bases for designing a regular-sized version of the train to be built in Taguig City, adjacent to the DOST Complex. The next AGT would accommodate up to 120 passengers, twice the UP Diliman version’s current capacity.

Meanwhile, designers of the AGTS also clarify that the AGT is “not monorail.”

“The AGTS was initially designed as a monorail but subsequent modifications from last year’s prototype no longer fits the AGTS into that category,” explained Engr. Elljay P. Mutuc, one of the train’s designers.

He said that what differentiates the AGTS from a monorail system is that the AGTS rolls on two rails instead of one. Moreover, the monorail has narrower guideways with respect to the coaches’ widths, but the AGT moves along two parallel bars whose distance across almost equals that of the coaches, he said.

One of DOST’s High-Impact Technology Solutions or HITS, the AGTS is being developed through DOST’s consultations with the UP National Center for Transportation Studies, College of Engineering, and the National Institute of Geological Sciences.

The project’s lead implementing agency in DOST— the Metals Industry Research and Development Center (MIRDC)—constructed the train’s main mechanical frameworks or “rolling stocks”, and subcontracted local companies Miescor Builders and Fil-Asia Automotive to construct the guideway and the coaches, respectively, based on the design team’s specifications.

The Philippine Council for Industry, Energy and Emerging Technology Research and Development (PCIEERD) funded the project under the MakiBayan Program, short for “Makina at Teknolohiya para sa Bayan”, of MIRDC.

Meanwhile, UP has expressed plans to conduct a study on the marketability of the AGT, and pledged full commitment to provide the test site its needed security.



Secretary Mario Montejo leads the inspection and rides the AGT maiden test run


Joyride. Making sure that the Automated Guideway Transit (AGT) runs smooth, the Department of Science and Technology Secretary Mario Montejo (right) leads the inspection and rides the AGT maiden test run, a 465-meter ride through a guideway system that stretches from the University of the Philippines (UP) College of Fine Arts up to the University Avenue. Also in photo are UP President Alfredo Pascual (left), UP College of Engineering Dean Aurea Matias (right, front), UP Vice President for Public Affairs Prospero De Vera, and Vice President for Development Elvira Zamora. The AGT project is a joint project of DOST and UP Diliman that aims to reduce traffic and air pollution in Metro Manila. (Photo and text by Joy M. Lazcano, S&T Media Service, STII)


AGT maiden test run

Department of Science and Technology’s (DOST) Automated Guideway Transit successfully fulfilled its maiden test run recently. The AGT, a joint project of DOST and UP Diliman, aims to reduce traffic and air pollution in Metro Manila. Photo shows DOST Secretary Mario Montejo (left), UP President Alfredo Pascual (2nd from left), DOST Assistant Secretary for Strategic Plans and Programs Robert Dizon (center behind Pres. Pascual), along with other UP officials, during the AGT maiden test run. (Photo and text by Joy M. Lazcano, S&T Media Service, STII)

First Filipino-developed train
First Filipino-developed train. The Automated Guideway Transit System or AGT is an elevated transportation developed by engineers of the Department of Science and Technology to address the worsening traffic congestion in Metro Manila. The 465-meter concrete guideway built inside the UP Diliman Campus serves as a test site to fine-tune the train’s speed, power, controls and stress systems. The testing phase will finish by June 2013 and any result will be used to construct a higher-capacity elevated carrier in Taguig City. (Photo by DOST-MIRDC)